What is a bifurcated tongue?
Many reptiles, such as snakes and lizards, have a bifurcated tongue.
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African Black Swift
The African Black Swift (Apus barbatus) is a small passerine bird in the Apodidae family of swifts. It is highly aerial, spending most of its life in the air. It is not related to swallows; it is in the same Order as hummingbirds.
The African Black Swift is black-brown except for a small, white or pale-grey patch on its chin. It has a short, forked tail. It has long, swept-back wings, which can rotate at the base (like hummingbird wings). It has short legs.
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Komodo Dragon
The Komodo Dragon (Varanus komodoensis) is a large reptile in the Varanidae family of monitor lizards. It is an ectotherm varanid.
The Komodo Dragon has a thick dark grey-brown body with armoured scales. It has short, stumpy legs. It has sharp teeth and a long, yellow, deeply-forked tongue.
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Rio Fuerte Beaded Lizard
The Rio Fuerte Beaded Lizard (Heloderma horridum exasperatum) is a venomous reptile. It is also called the Mexican Beaded Lizard. It is related to the Gila Monster (Heloderma suspectum).
The Rio Fuerte Beaded Lizard is blackish with yellowish bands. It has a stocky body with a broad head. Its scales are small and look like beads. It has a short tail. It has a pink, forked tongue. Unlike other lizards, if it loses its tail, it does not grow back.
African Red-Rumped Swallow
The Red-Rumped Swallow (Cecropis daurica) is a small bird from Europe, Asia, and Africa. The African Red-Rumped Swallow (Cecropis daurica emini) is from Kenya, Uganda, Sudan, and Zambia. Unlike the European swallows, which are migratory, the African Red-Rumped Swallows are resident (they do not fly to another location in winter).
The Red-Rumped Swallow is a blue-black with a rufous (red-brown) rump with rufous patches on the sides of its head. It has rufous underparts with a pale throat. Its tail is plain and forked. It has dark eyes, a small grey beak, and pink-grey legs.
Fish Tails
One of the most important fins on a fish is the tail fin, which is called the caudal fin.
Caudal fins – or fish tails – can be many different shapes. The main shapes are rounded, square, forked and lunate.